Bit Accessory With Magnetic Limiting Member
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Solution Overview
Problem
Current bit accessories require two hands to operate, making the process laborious and are often customized for specific bits, limiting their compatibility with commonly available bits in the market.
Innovation Solution
A bit accessory comprising a sleeve with an accommodating cavity and a limiting member, featuring a magnetic functioning member and an elastic installing casing, allowing for one-handed operation and compatibility with various bit standards through a unique combination of stopping portions and hole wall configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a bit accessory is customized based on the structure and standard of a specific bit, then the bit accessory can be precisely fitted to that specific bit, but it cannot be used with bits that are commonly available in the market
Solution Approach 1:
The patent designs the bit accessory with a universal interface that can accommodate multiple bit standards. The accommodating cavity and limiting member are configured to work with different bit types (e.g., Phillips, flathead, hex bits) through standardized dimensions and geometric features that conform to common bit specifications, enabling one accessory to serve multiple functions across different bit standards
2Reliability
If two hands are used to operate the bit (one hand supports the screw, and the other hand handles the electric tool), then the screw can be securely supported and the tool can be precisely controlled, but the operation becomes laborious and the user cannot perform other operations with their hands
Solution Approach 1:
The bit accessory incorporates a magnetic functioning member that automatically attracts and holds the screw in place without requiring manual support. The magnetic force self-adjusts to secure the screw during the tightening process, freeing both hands for other operations while maintaining reliable screw support throughout the fastening cycle
3Adaptability or versatility
If the limiting member is allowed to move freely through the accommodating cavity, then the bit accessory can accommodate different bit lengths, but the limiting member cannot be properly positioned and stopped
Solution Approach 1:
The patent replaces complex mechanical positioning mechanisms with a magnetic field-based positioning system. The magnetic functioning member creates a magnetic field that automatically positions the limiting member at the correct location within the accommodating cavity, eliminating the need for intricate mechanical stops or adjustment mechanisms while maintaining adaptability to different bit lengths
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables one-handed screw tightening and compatibility with different bit standards, enhancing operational efficiency and versatility.
Implementation Method 1
the functioning member may have a magnetic portion
Data Source
AI summary
A bit accessory for a bit has a sleeve with an accommodating cavity running through the sleeve and a limiting member with a limiting hole running through the limiting member. The sleeve includes a first stopping portion for stopping the limiting member from passing through the accommodating cavity and the limiting member includes a first hole wall portion forming a first hole wall which provides the limiting hole with a minimum hole diameter and a second hole wall portion forming a second hole wall which provides the limiting hole with a maximum hole diameter. The limiting member is at least partly accommodated in the accommodating cavity, and a direction which the limiting hole runs through the limiting member is parallel to the accommodating cavity when the limiting member is stopped by the first stopping portion.